SKF 7208ACD/HCP4A Angular contact ball bearings,SKF 7208 ACD/HCP4A Super-precision bearings-BEARINGPOWER Co.,Ltd.
Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 7208 ACD/HCP4A

7208 ACD/HCP4A

Dimensions
d 40mm
D 80mm
B 18mm
d1 53.3mm
d2 53.3mm
D1 66.7mm
r1,2min.1.1mm
r3,4min.0.6mm
a 23.1mm
Abutment dimensions
damin.47mm
dbmin.47mm
Damax.73mm
Dbmax.75.8mm
ramax.1mm
rbmax.0.6mm
dn 56.2mm
Calculation data
Basic dynamic load ratingC 31.9kN
Basic static load ratingC0 22.8kN
Fatigue load limitPu 0.98kN
Attainable speed for grease lubrication  19000r/min
Attainable speed for oil-air lubrication  32000r/min
Ball diameterDw 11.112mm
Number of ballsz 14 
Reference grease quantityGref 4.725cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class AGA 200N
Static axial stiffness, preload class A  141N/µm
Preload class BGB 400N
Static axial stiffness, preload class B  183N/µm
Preload class CGC 800N
Static axial stiffness, preload class C  242N/µm
Preload class DGD 1600N
Static axial stiffness, preload class D  326N/µm
Calculation factors
Calculation factorf 1.05 
Calculation factorf1 0.99 
Calculation factorf2A 1 
Calculation factorf2B 1.01 
Calculation factorf2C 1.03 
Calculation factorf2D 1.06 
Calculation factorfHC 1.01 
Calculation factore 0.68 
Calculation factor (single, tandem)Y2 0.87 
Calculation factor (single, tandem)Y0 0.38 
Calculation factor (single, tandem)X2 0.41 
Calculation factor (back-to-back, face-to-face)Y1 0.92 
Calculation factor (back-to-back, face-to-face)Y2 1.41 
Calculation factor (back-to-back, face-to-face)Y0 0.76 
Calculation factor (back-to-back, face-to-face)X2 0.67 
Mass
Mass bearing  0.33kg
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Hot number: 140x170x15 HMSA10 RG 17310 2319 KM + H 2319 29385 48x68x10 HMS5 RG 85x105x12 HMS5 V BT4B 334106 G/HA1VA901 FSAF 1520 x 3.3/8 T MB 7 A PCMW 386201.5 E RNAO 35x45x13 S71914 CB/HCP4A SHR 17 SSAFS 22516 x 2.5/8 TLC SSAFS 22538 x 6.13/16

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